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l@uiten faire garrot Hirt.

BURR RANNISTRR AND y GEORGE R. GREEN, 0F KALAMAZOO, MICHIGAN.

Letters Patent No. 71,950, dated December 10, 1867.

AUTOMATIC TOOTH-PLUGGER.

.TO ALL WHO IT MAY CONOERN Beit known that we, BURR BANNISTER and GEORGEF. GREEN, of Kalamazoo, i'n the countyof Kalamazoo, and State ofMichigan, have invented a new and useful Automatic Tooth-Pluggor; and Wedo hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making part of this specication.

Figure 1 is side elevation.

Figure 2, sectional drawing of engine.

Figure 3, plugger.

' Figure 4, lock to engine-valve.

Figure 5, flexible pipe.

Letters of reference also indicating corresponding parts. V

The nature oi' our invention consists substantially in the employmentoi" an engine which is operated by' means of compressed air, inconnection with a tooth-plugger, which. is secured 'in a case at oneend-of the cy1' inder in such a manner as to receive a continuoussuccession of blows from the end of the piston-rod, which may beregulated at the will ofthe operator. l v

The invention has for its`- object rapidity of.blows, light or heavy,slowor fast, as may be desired' by the operator, to condense the foil inthe cavities of teeth. v'

To enable others skilled .in'the art to understand our invention, wewill describe its construction and operation. 4

" D and H representa case containing'an engine, attached at one end,and' so arranged that a pluggerbar will slip in at the other end untilits end comes in Contact, with the piston-rod ofthe engine when at itsouter stroke, as at N and M. E is al rubber pipe, leading from the sidepipe of the engine to a persons mouth, footbellows, or any receiver ofcompressed air, so that if air be blown heavily through the pipe E itwill cause the l engine to give heavy and continuous blows on the endof` vthe plugger-bn1, corresponding to the length 'of'tiuxe the wind iskept up. One, tivo', o r three blows are produced by a quick,A sharppuff of air; light blows by blowing a. little. i i

Fig. 2. G, a side pipe containing valves, moved backwards and forwardsacross the openings of the cylinder, operated by the' cross-head oi" theengine attached to a. spring-Wire, I; the valves held at either side ofthe openings by lock F until the engine has finished its stroke. H,door; K, cylinder; A,"pis`t'on; B. piston-rod; C,pluggerbar. We useplnggers ofjany of the knoivn forms.

Having described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. The combination of an engine, operated by means of compressed air,with a tootli-plugger, for the purpose set forth and described.

2. The lock F, in connection with spring I, operated by cross-head ot'piston-rod, in the manner and forthe purpose specified. i

BURR BANNISTER, Witnesses: GEORGE F. GREEN.

G. P. DoAN, l J. M. COLEMAN.

